A. Krasznahorkay

Publication List Details

Period

1994 - 2008

Number

108

Co-Authors

Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics (2008)

Abat, E., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., ...

A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together with the performance...

The ATLAS central level-1 trigger logic and TTC system (2008)

Ask, S, Berge, D, Borrego-Amaral, P, Caracinha, D, Ellis, Nick, Farthouat, P, ...

The ATLAS central level-1 trigger logic consists in the Central Trigger Processor and the interface to the detector-specific muon level-1 trigger electronics. It is responsible for forming a level-1...

Integration of the Trigger and Data Acquisition Systems in ATLAS (2008)

Abolins, M, Adragna, P, Aleksandrov, E, Aleksandrov, I, Amorim, A, Anderson, K, ...

During 2006 and the first half of 2007, the installation, integration and commissioning of trigger and data acquisition (TDAQ) equipment in the ATLAS experimental area have progressed. There have...

Disappearance of the N=14 Shell Gap in the Carbon Isotopic Chain (2008)

Stanoiu, M, Sohler, D, Sorlin, O, Azaiez, F, Dombradi, Z, Brown, B A, ...

The structure of C-17-20(6) nuclei was investigated by means of the in-beam gamma-ray spectroscopy technique using fragmentation reactions of radioactive beams. Based on particle-gamma and...

Disappearance of the $N=14$ shell gap in the C isotopic chain (2008)

Stanoiu, M., Sohler, D., Sorlin, O., Azaiez, F., Dombradi, Zs., Brown, B.A., ...

The structure of $^{17-20}_{6}$C nuclei was investigated by means of the in-beam $\gamma$-ray spectroscopy technique using fragmentation reactions of radioactive beams. Based on particle-$\gamma$ and...

Disappearance of the $N=14$ shell gap in the C isotopic chain (2008)

Stanoiu, M., Sohler, D., Sorlin, O., Azaiez, F., Dombradi, Zs., Brown, B.A., ...

The structure of $^{17-20}_{6}$C nuclei was investigated by means of the in-beam $\gamma$-ray spectroscopy technique using fragmentation reactions of radioactive beams. Based on particle-$\gamma$ and...

Disappearance of the $N=14$ shell gap in the C isotopic chain (2008)

Stanoiu, M., Sohler, D., Sorlin, O., Azaiez, F., Dombradi, Zs., Brown, B.A., ...

The structure of $^{17-20}_{6}$C nuclei was investigated by means of the in-beam $\gamma$-ray spectroscopy technique using fragmentation reactions of radioactive beams. Based on particle-$\gamma$ and...

The Muon Trigger in ATLAS (2007)

Siragusa, G, Barria, P, Bellomo, M, Biglietti, M, Carlino, G, Cataldi, G, ...

The trigger system of the ATLAS experiment at LHC must reduce the interaction rate of ∼1 GHz to the ∼200 Hz of the event acquisition rate. The system is organized in three hierarchical...

Search for invisibly decaying Higgs bosons in $e+e- \to Zoho$ production at $\sqrt{s}$ = 183 - 209 GeV (2007)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

A search is performed for Higgs bosons decaying into invisible final states, produced in association with a Zo boson in e+e- collisions at energies between 183 and 209 GeV. The search is based on...

Search for Dirac Magnetic Monopoles in $e^{+}e^{-}$ Collisions with the OPAL Detector at LEP2 (2007)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

This letter describes a direct search for pair produced magnetic monopoles in e+e- collisions. The analysis is based on 62.7 pb^-1 of data collected with the OPAL detector at an average...

Inclusive Jet Production in Photon-Photon Collisions at $\sqrt{^{s}ee}$ from 189 to 209 GeV (2007)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

Inclusive jet production (e+e- -> e+e- +jet+X) is studied in collisions of quasi-real photons radiated by the LEP beams at e+e- centre-of-mass energies sqrt see from 189 to 209 GeV. Jets are...

TMVA - Toolkit for Multivariate Data Analysis (2007)

Höcker, A., Speckmayer, P., Stelzer, J., Tegenfeldt, F., Voss, H., Voss, K., ...

n high-energy physics, with the search for ever smaller signals in ever larger data sets, it has become essential to extract a maximum of the available information from the data. Multivariate...

Commissioning of the ATLAS Level-1 Central Trigger (2007)

Pauly, T, Ask, S, Berge, D, Ellis, Nick, Farthouat, P, Gällnö, P, ...

The ATLAS Level-1 Central Trigger consists of the Central Trigger Processor (CTP) and the Muon-to-CTP-Interface (MUCTPI). The CTP receives trigger information from the Level-1 Calorimeter Trigger...

The ATLAS Level-1 Trigger: Status of the System and First Results from Cosmic-Ray Data (2007)

Berge, D, Aielli, G, Andrei, V, Achenbach, R, Adragna, P, Aloisio, A, ...

The ATLAS detector at CERN's Large Hadron Collider (LHC) will be exposed to proton-proton collisions from beams crossing at 40 MHz. At the design luminosity of 10^34 cm^-2 s^-1 there are on average...

Implementation and performance of the ATLAS Trigger Muon "Vertical Slice" (2007)

Sidoti, A, Di Mattia, A, Falciano, S, Luci, C, Luminari, L, Marzano, F, ...

The ATLAS (A Toroidal LHC ApparatuS) trigger system is designed to keep high effiency for interesting events while achieving a rejection of low transverse momentum (p_T) physics of about 10^7, thus...

TMVA - Toolkit for Multivariate Data Analysis (2007)

Höcker, A, Stelzer, J, Tegenfeldt, F, Voss, H, Voss, K, Christov, A, ...

Multivariate machine learning techniques for the classification of data from high-energy physics (HEP) experiments have become standard tools in most HEP analyses. The multivariate classifiers...

TMVA - Toolkit for Multivariate Data Analysis with ROOT: Users guide (2007)

Höcker, A, Stelzer, J, Tegenfeldt, F, Voss, H, Voss, K, Christov, A, ...

Multivariate machine learning techniques for the classification of data from high-energy physics experiments have become a fundamental ingredient to most analyses. The multivariate classifiers...

TMVA - Toolkit for Multivariate Data Analysis (2007)

Hocker, A., Speckmayer, P., Stelzer, J., Tegenfeldt, F., Voss, H., Voss, K., ...

In high-energy physics, with the search for ever smaller signals in ever larger data sets, it has become essential to extract a maximum of the available information from the data. Multivariate...

Inclusive Production of Charged Hadrons in Photon-Photon Collisions (2006)

Abbiendi, G, Åkesson, P F, De Roeck, A, Zivkovic, L, Zer-Zion, D, Yamashita, S, ...

The inclusive production of charged hadrons in the collisions of quasi-real photons e+e- -> e+e- +X has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass...

Inclusive Production of Charged Hadrons in Photon-Photon Collisions (2006)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K, ...

The inclusive production of charged hadrons in the collisions of quasi-real photons e+e- -> e+e- +X has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass...

Search for Invisibly Decaying Higgs Bosons with Large Decay Width Using the OPAL Detector at LEP (2006)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

This paper describes a topological search for an invisibly decaying Higgs boson,H, produced via the Bjorken process (e+e- -> HZ). The analysis is based on data recorded using the OPAL detector at LEP...

QCD coherence and correlations of particles with restricted momenta in hadronic Z decays (2006)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

QCD coherence effects are studied based on measurements of correlations of particles with either restricted transverse momenta, pT

QCD coherence and correlations of particles with restricted momenta in hadronic Z decays (2006)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

QCD coherence effects are studied based on measurements of correlations of particles with either restricted transverse momenta, pT

Measurement of the strong coupling $\alpha^{s}$ from four-jet observables in $e^{+}e^{-}$ annihilation (2006)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

Data from e+e- annihilation into hadrons at centre-of-mass energies between 91 GeV and 209 GeV collected with the OPAL detector at LEP, are used to study the four-jet rate as a function of the Durham...

Measurement of the strong coupling $\alpha^{s}$ from four-jet observables in $e^{+}e^{-}$ annihilation (2006)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

Data from e+e- annihilation into hadrons at centre-of-mass energies between 91 GeV and 209 GeV collected with the OPAL detector at LEP, are used to study the four-jet rate as a function of the Durham...

The first-level trigger of ATLAS (2005)

Haller, J, Achenbach, R, Aielli, G, Aloisio, A, Alviggi, M G, Aprodu, V, ...

Due to the huge interaction rates and the tough experimental environment of pp collisions at a centre-of-mass energy sqrt(s)=14 TeV and luminosities of up to 10^34cm^-2s^-1, one of the experimental...

ATLAS Level-1 Trigger Timing-In Strategies (2005)

Pauly, Thilo, Borrego-Amaral, P, Ask, S, Ellis, Nick, Farthouat, P, Gällnö, P, ...

The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a bunch-crossing rate of 40 MHz. In order to reduce the data rate, a three-level trigger system selects potentially...

ATLAS Level-1 Trigger Timing-In Strategies (2005)

Pauly, Thilo, Borrego-Amaral, P, Ask, S, Ellis, Nick, Farthouat, P, Gällnö, P, ...

The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a bunch-crossing rate of 40 MHz. In order to reduce the data rate, a three-level trigger system selects potentially...

$e^{+}e^{-}$ pairs from a nuclear transition signaling an elusive light neutral boson (2005)

Krasznahorkay, A., Csatlós, M., Csige, L., Gácsi, Z., Gulyás, J., ...

Electron-positron pairs have been observed in the 10.95-MeV $0^-\to0^+$ decay in $^{16}$O. The branching ratio of the e$^+$e$^-$ pairs compared to the 3.84-MeV $0^-\to2^+$ $\gamma$ decay of the level...

The ATLAS Level-1 Central Trigger Processor (CTP) (2005)

Spiwoks, Ralf, Ask, S, Ellis, Nick, Farthouat, P, Gällnö, P, Haller, J, ...

The ATLAS Level-1 Central Trigger Processor (CTP) combines information from calorimeter and muon trigger processors and makes the final Level-1 Accept (L1A) decision on the basis of lists of...

The ATLAS Level-1 Central Trigger Processor (CTP) (2005)

Spiwoks, Ralf, Ask, S, Ellis, Nick, Farthouat, P, Gällnö, P, Haller, J, ...

The ATLAS Level-1 Central Trigger Processor (CTP) combines information from calorimeter and muon trigger processors and makes the final Level-1 Accept (L1A) decision on the basis of lists of...

Determination of $\alpha_{s}$ using Jet Rates at LEP with the OPAL detector (2005)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

Hadronic events produced in e+e- collisions by the LEP collider and recorded by the OPAL detector were used to form distributions based on the number of reconstructed jets. The data were collected...

Determination of $\alpha_{s}$ using Jet Rates at LEP with the OPAL detector (2005)

Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...

Hadronic events produced in e+e- collisions by the LEP collider and recorded by the OPAL detector were used to form distributions based on the number of reconstructed jets. The data were collected...

High-spin structure of $^{102}$Ru (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus 102Ru have been studied through the 96Zr(13C,alpha3n) reaction using the EUROBALL IV gamma-ray spectrometer accompanied by the DIAMANT array for the detection of...

Composite chiral bands in the A $\sim$ 105 mass region (2005)

Timar, J., Vaman, C., Starosta, K., Joshi, P., Dimitrov, V.I., Fossan, D.B., ...

Composite chiral bands, corresponding to the $\pi g_{9/2}\nu (h_{11/2})^2$ quasiparticle configuration, were observed in $^{103}Rh and $^{105}$Rh. The behaviour of these bands were compared with that...

High-spin structure of $^{102}Ru$ (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus $^{102}Ru$ have been investigated via the $^{96}Zr(^{13}C,\alpha3n)$ reaction at beam energies of 51 and 58 MeV, using the EUROBALL IV gamma-ray spectrometer and the...

High-spin structure of $^{102}$Ru (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus 102Ru have been studied through the 96Zr(13C,alpha3n) reaction using the EUROBALL IV gamma-ray spectrometer accompanied by the DIAMANT array for the detection of...

Composite chiral bands in the A $\sim$ 105 mass region (2005)

Timar, J., Vaman, C., Starosta, K., Joshi, P., Dimitrov, V.I., Fossan, D.B., ...

Composite chiral bands, corresponding to the $\pi g_{9/2}\nu (h_{11/2})^2$ quasiparticle configuration, were observed in $^{103}Rh and $^{105}$Rh. The behaviour of these bands were compared with that...

High-spin structure of $^{102}Ru$ (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus $^{102}Ru$ have been investigated via the $^{96}Zr(^{13}C,\alpha3n)$ reaction at beam energies of 51 and 58 MeV, using the EUROBALL IV gamma-ray spectrometer and the...

Composite chiral bands in the A $\sim$ 105 mass region (2005)

Timar, J., Vaman, C., Starosta, K., Joshi, P., Dimitrov, V.I., Fossan, D.B., ...

Composite chiral bands, corresponding to the $\pi g_{9/2}\nu (h_{11/2})^2$ quasiparticle configuration, were observed in $^{103}Rh and $^{105}$Rh. The behaviour of these bands were compared with that...

High-spin structure of $^{102}Ru$ (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus $^{102}Ru$ have been investigated via the $^{96}Zr(^{13}C,\alpha3n)$ reaction at beam energies of 51 and 58 MeV, using the EUROBALL IV gamma-ray spectrometer and the...

High-spin structure of $^{102}$Ru (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus 102Ru have been studied through the 96Zr(13C,alpha3n) reaction using the EUROBALL IV gamma-ray spectrometer accompanied by the DIAMANT array for the detection of...

High-spin structure of $^{102}$Ru (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus 102Ru have been studied through the 96Zr(13C,alpha3n) reaction using the EUROBALL IV gamma-ray spectrometer accompanied by the DIAMANT array for the detection of...

Composite chiral bands in the A $\sim$ 105 mass region (2005)

Timar, J., Vaman, C., Starosta, K., Joshi, P., Dimitrov, V.I., Fossan, D.B., ...

Composite chiral bands, corresponding to the $\pi g_{9/2}\nu (h_{11/2})^2$ quasiparticle configuration, were observed in $^{103}Rh and $^{105}$Rh. The behaviour of these bands were compared with that...

High-spin structure of $^{102}Ru$ (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus $^{102}Ru$ have been investigated via the $^{96}Zr(^{13}C,\alpha3n)$ reaction at beam energies of 51 and 58 MeV, using the EUROBALL IV gamma-ray spectrometer and the...

High-spin structure of $^{102}Ru$ (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus $^{102}Ru$ have been investigated via the $^{96}Zr(^{13}C,\alpha3n)$ reaction at beam energies of 51 and 58 MeV, using the EUROBALL IV gamma-ray spectrometer and the...

High-spin structure of $^{102}$Ru (2005)

Sohler, D., Timar, J., Rainovski, G., Joshi, P., Starosta, K., Fossan, D.B., ...

High-spin states in the nucleus 102Ru have been studied through the 96Zr(13C,alpha3n) reaction using the EUROBALL IV gamma-ray spectrometer accompanied by the DIAMANT array for the detection of...

Composite chiral bands in the A $\sim$ 105 mass region (2005)

Timar, J., Vaman, C., Starosta, K., Joshi, P., Dimitrov, V.I., Fossan, D.B., ...

Composite chiral bands, corresponding to the $\pi g_{9/2}\nu (h_{11/2})^2$ quasiparticle configuration, were observed in $^{103}Rh and $^{105}$Rh. The behaviour of these bands were compared with that...

Stability of chiral geometry in the odd-odd Rh isotopes: spectroscopy of 106Rh (2004)

Joshi, P., Jenkins, D.G., Raddon, P.M., Simons, A.J., Wadsworth, R., Wilkinson, A.R., ...

The nucleus 106Rh was populated using the reaction 96Zr(13C, p2n) at a beam energy of 51 MeV. γ-ray transitions were identified using the EUROBALL-IV γ-ray spectrometer and the DIAMANT charged...

N=14 and 16 Shell Gaps in Neutron-Rich Oxygen Isotopes (2004)

Stanoiu, M, Azaiez, F, Dombradi, Z, Sorlin, O, Brown, B A, Belleguic, M, ...

In-beam gamma-ray spectroscopy using fragmentation reactions of both stable and radioactive beams has been performed in order to study the structure of excited states in neutron-rich oxygen isotopes...

Nuclear Structure around the N=16 subshell closure (2004)

Sorlin, O., Stanoiu, M., Dombrádi, Zs., Azaiez, F., A. Brown, B., Belleguic, M., ...

In-beam gamma-spectroscopy using fragmentation reactions of both stable and radioactive beams have been performed in order to study the structure of excited states in the neutron-rich 18,20C, 21–24O...

Study of neutron rich Carbon and Oxygen nuclei up to drip line (2004)

Stanoiu, M., Azaiez, F., Dombrádi, Zs., Sorlin, O., Brown, B.A., Belleguic, M., ...

In-beam$\ gamma$-spectroscopy using fragmentation reactions of radioactive beams have been performed in order to study the structure of excited states in neutron rich oxygen and carbon isotopes. For...

Experimental evidence for chirality in the odd-A $^{105}$Rh (2004)

Timar, J., Joshi, P., Starosta, K., Dimitrov, V.I., Fossan, DS.B., Molnar, J., ...

High-spin states in 105Rh were populated by the 96Zr(13C, p3n) reaction at beam energies of 51 and 58 MeV, and studied using the EUROBALL IV γ-ray spectrometer and the DIAMANT charged particle...

Chirality in the A$\simeq$ 100 region (2004)

Joshi, P., Jenkins, D.G., Raddon, P.M., Simons, A.J., Wadsworth, R., Wilkinson, T., ...

Evidence for chirality in nuclei has been found in N ~ 75 isotopes in the A ~ 130 mass region. This phenomenon is a signature of triaxiality in nuclei and there is a clear need to study other regions...

Nuclear Structure around the N=16 subshell closure (2004)

Sorlin, O., Stanoiu, M., Dombrádi, Zs., Azaiez, F., A. Brown, B., Belleguic, M., ...

In-beam gamma-spectroscopy using fragmentation reactions of both stable and radioactive beams have been performed in order to study the structure of excited states in the neutron-rich 18,20C, 21–24O...

Study of neutron rich Carbon and Oxygen nuclei up to drip line (2004)

Stanoiu, M., Azaiez, F., Dombrádi, Zs., Sorlin, O., Brown, B.A., Belleguic, M., ...

In-beam$\ gamma$-spectroscopy using fragmentation reactions of radioactive beams have been performed in order to study the structure of excited states in neutron rich oxygen and carbon isotopes. For...

Experimental evidence for chirality in the odd-A $^{105}$Rh (2004)

Timar, J., Joshi, P., Starosta, K., Dimitrov, V.I., Fossan, DS.B., Molnar, J., ...

High-spin states in 105Rh were populated by the 96Zr(13C, p3n) reaction at beam energies of 51 and 58 MeV, and studied using the EUROBALL IV γ-ray spectrometer and the DIAMANT charged particle...

Chirality in the A$\simeq$ 100 region (2004)

Joshi, P., Jenkins, D.G., Raddon, P.M., Simons, A.J., Wadsworth, R., Wilkinson, T., ...

Evidence for chirality in nuclei has been found in N ~ 75 isotopes in the A ~ 130 mass region. This phenomenon is a signature of triaxiality in nuclei and there is a clear need to study other regions...

Neutron decay of the isobaric analog state in 208Bi (1994)

Bordewijk, J. A., Balanda, A., Beaumel, D., Blomgren, J., Brandenburg, S., ...

The isospin-forbidden neutron decay of the isobaric analog state in 208Bi has been measured, following its excitation via the 208Pb(3He,t)208Bi reaction at 61.2 MeV. In contrast to the proton decay,...